The multibeam parallel joint transform correlator for optical pattern recognition, which was recently proposed by the authors [Appl. Opt. <b>37</b>, 5408 (1998)], can increase parallelism without accumulating zero-order background level at the first Fourier transform plane. To evaluate the throughput capability, an experimental trial was made, achieving a 67-ms recognition rate per face per channel, which is limited by the response of the optically addressed liquid-crystal spatial light modulator. A general design theory is developed for dense packing of the optical channels for a given spatial light modulator resolution, considering the bandwidth requirement of the target image. Then the condition for submillisecond throughput with state-of-the-art device technology is discussed.
© 2000 Optical Society of America
(100.0100) Image processing : Image processing
(100.1160) Image processing : Analog optical image processing
(100.4550) Image processing : Correlators
(100.5010) Image processing : Pattern recognition
(110.4190) Imaging systems : Multiple imaging
Roshan Thapliya and Takeshi Kamiya, "Optimization of Multichannel Parallel Joint Transform Correlator for Accelerated Pattern Recognition," Appl. Opt. 39, 5309-5317 (2000)